Spring Peeper Tadpole Bubble-sucking (IMAGE) University of Connecticut Caption The researchers studied tadpoles from five species of frogs -- four of which can be found in Connecticut. What they found was that tadpoles of all species were able to inflate their lungs within a few days of hatching, despite being too small to access air. Credit Kurt Schwenk Usage Restrictions with attribution License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.